Error(s) in re-building vignettes:
--- re-building ‘manual.Rmd’ using rmarkdown

 *** caught segfault ***
address (nil), cause 'unknown'

Traceback:
 1: RandomFieldsUtils::RFoptions()
 2: internal.rfoptions(xyz_notation = length(y) != 0, expected_number_simu = n,     ..., RELAX = !missing(model) && is(model, "formula"))
 3: RandomFields::RFsimulate(RMmodels(var = x["var"], scale = x["scale"]) +     RandomFields::RMtrend(mean = x["mean"]), x = locs)
 4: FUN(newX[, i], ...)
 5: apply(df.pars, 1, function(x) {    RandomFields::RFsimulate(RMmodels(var = x["var"], scale = x["scale"]) +         RandomFields::RMtrend(mean = x["mean"]), x = locs)@data$variable})
 6: sample_fullSVC(df.pars = pars, nugget.sd = sqrt(nugget.var),     locs = as.matrix(locs), cov.name = "exp")
 7: eval(expr, envir, enclos)
 8: eval(expr, envir, enclos)
 9: withVisible(eval(expr, envir, enclos))
10: withCallingHandlers(withVisible(eval(expr, envir, enclos)), warning = wHandler,     error = eHandler, message = mHandler)
11: handle(ev <- withCallingHandlers(withVisible(eval(expr, envir,     enclos)), warning = wHandler, error = eHandler, message = mHandler))
12: timing_fn(handle(ev <- withCallingHandlers(withVisible(eval(expr,     envir, enclos)), warning = wHandler, error = eHandler, message = mHandler)))
13: evaluate_call(expr, parsed$src[[i]], envir = envir, enclos = enclos,     debug = debug, last = i == length(out), use_try = stop_on_error !=         2L, keep_warning = keep_warning, keep_message = keep_message,     output_handler = output_handler, include_timing = include_timing)
14: evaluate::evaluate(...)
15: evaluate(code, envir = env, new_device = FALSE, keep_warning = !isFALSE(options$warning),     keep_message = !isFALSE(options$message), stop_on_error = if (is.numeric(options$error)) options$error else {        if (options$error && options$include)             0L        else 2L    }, output_handler = knit_handlers(options$render, options))
16: in_dir(input_dir(), evaluate(code, envir = env, new_device = FALSE,     keep_warning = !isFALSE(options$warning), keep_message = !isFALSE(options$message),     stop_on_error = if (is.numeric(options$error)) options$error else {        if (options$error && options$include)             0L        else 2L    }, output_handler = knit_handlers(options$render, options)))
17: eng_r(options)
18: block_exec(params)
19: call_block(x)
20: process_group.block(group)
21: process_group(group)
22: withCallingHandlers(if (tangle) process_tangle(group) else process_group(group),     error = function(e) {        setwd(wd)        cat(res, sep = "\n", file = output %n% "")        message("Quitting from lines ", paste(current_lines(i),             collapse = "-"), " (", knit_concord$get("infile"),             ") ")    })
23: process_file(text, output)
24: knitr::knit(knit_input, knit_output, envir = envir, quiet = quiet)
25: rmarkdown::render(file, encoding = encoding, quiet = quiet, envir = globalenv(),     output_dir = getwd(), ...)
26: vweave_rmarkdown(...)
27: engine$weave(file, quiet = quiet, encoding = enc)
28: doTryCatch(return(expr), name, parentenv, handler)
29: tryCatchOne(expr, names, parentenv, handlers[[1L]])
30: tryCatchList(expr, classes, parentenv, handlers)
31: tryCatch({    engine$weave(file, quiet = quiet, encoding = enc)    setwd(startdir)    output <- find_vignette_product(name, by = "weave", engine = engine)    if (!have.makefile && vignette_is_tex(output)) {        texi2pdf(file = output, clean = FALSE, quiet = quiet)        output <- find_vignette_product(name, by = "texi2pdf",             engine = engine)    }    outputs <- c(outputs, output)}, error = function(e) {    thisOK <<- FALSE    fails <<- c(fails, file)    message(gettextf("Error: processing vignette '%s' failed with diagnostics:\n%s",         file, conditionMessage(e)))})
32: tools:::buildVignettes(dir = "/data/gannet/ripley/R/packages/tests-devel/varycoef.Rcheck/vign_test/varycoef")
An irrecoverable exception occurred. R is aborting now ...